Spas 3

Also called Orfeus (Orbiting and Retrievable Far and Extreme UV Spectrometer)

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General

Designation	22798 / 93058C
Launch date	12 Sep 1993
Country of origin	Germany
Mission	Scientific: Astronomy
Operator	DARA
Perigee/Apogee	301/331 km
Inclination	28.5°
Period	90.9 min
Launch vehicle	STS 51

The main instrument is the 1-meter Orfeus telescope with EUV (400-1150A) and far UV (900-1250A) spectrometers with high spectral resolution. A secondary experiment is the Princeton Interstellar Medium Absorption Profile Spectrograph which studied very fine structure in ultraviolet absorption lines caused by interstellar gas in stellar spectra.

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End of life

Cause	Retrieved by the Shuttle
Decay	22 Sep 1993

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External resources

sat-index articles

Technical data

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Specifications

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